# -*- coding: utf-8 -*-
import datetime
import math
import scrapy
import re
from apps.tax_policy.tax_policy.items import NetTaxPolicyItem as Item, urllib, time, urljoin, json, urlencode
from apps.tax_policy.tax_policy.spiders.base_spider.base_tax_policy_spider import BaseTaxPolicySpider


class JiangsuNantongPolicy(BaseTaxPolicySpider):
    name = 'jiangsu_nantong_czj2_policy'

    province = '江苏省'
    city = '南通市'
    # county = ''
    park = ''

    def __init__(self, get_next=False, **kwargs):
        super().__init__(**kwargs)
        print(get_next)
        self.get_next = get_next

    @classmethod
    def update_settings(cls, settings) -> None:
        downloader_middlewares = settings.getdict("DOWNLOADER_MIDDLEWARES")
        new_settings = {
            **(cls.custom_settings or {}),
            **{
                # "COOKIES_ENABLED": False,
                "DOWNLOAD_TIMEOUT": 200,
                # "CONCURRENT_REQUESTS": 2,
                "HTTPERROR_ALLOWED_CODES": [302, 400, 404, 500, 200, 202, 502, 429, 521],
                # "DOWNLOAD_DELAY": 5,
                "DOWNLOADER_MIDDLEWARES": {
                    "components.middlewares.downloadmiddlewares.public.jsl_middlewares.JslMiddleware": 543,
                    **downloader_middlewares
                }
            },
        }
        settings.setdict(new_settings or {}, priority="spider")

    def start_requests(self):
        for source, county, url, path in [
            ['南通市财政局', "", "https://czj.nantong.gov.cn/ntsczj/zcwj/zcwj.html", "首页>法定主动-公开内容>政策文件"],

        ]:
            item = {'source': source, 'county': county}
            callback = self.parse_url
            yield scrapy.Request(url, callback=callback, meta={'item': item}, dont_filter=True)

    def parse_url(self, response, **kwargs):
        meta = response.meta
        # url = response.xpath("//a[text()='" + meta['path'] + "']/@href").get()
        url = response.xpath(".").re_first(r"Url:\s*'(.*?)',")
        columnId = response.xpath(".").re_first(r"columnId:\s*'(.*?)'")
        # siteId = response.xpath(".").re_first("'siteId':(\d+),")
        # channelId = ",".join([response.xpath(".").re_first('var\s*id\s*=\s*"(\d+)";?')] + response.xpath(".").re('id\s*\+\s*","\s*\+\s*(\d+);'))
        # print(channelId)
        params = {
            'startrecord': 1,  # 初始记录起始位置
            'endrecord': 30,   # 初始记录结束位置
            'perpage': 10,
            'columnId': columnId,
        }
        meta['params'] = params

        yield scrapy.Request(
            url=f"{response.urljoin(url)}?{urlencode(params)}",
            callback=self.parse_list,
            meta=meta,
        )

    def parse_list(self, response, **kwargs):
        meta = response.meta
        prev_item = meta.get('item')
        params = meta.get('params')
        res = scrapy.Selector(text=response.json()['result'])
        elem_list = res.xpath('//record')
        for elem in elem_list:
            item = Item()
            item['source_url'] = elem.xpath(".").re_first(r'href="(.*?)"')
            item['source_url'] = response.urljoin(item['source_url'])
            item['publish_date'] = elem.xpath(".").re_first(r'span>(\d{4}-\d{2}-\d{2})<')
            if item['publish_date'] < '2022-01-01':
                # self.get_next = None
                pass
            if prev_item is not None:
                for key, value in prev_item.items():
                    item[key] = value
            if not item['source_url']:
                continue
            # if '.htm' not in item['source_url'] and '.shtm' not in item['source_url']:
            #     continue
            if 'relativeInfo' in item['source_url']:
                continue
            print(response.url.split("?")[-1], item['source_url'])
            yield response.follow(item['source_url'], callback=self.parse_detail, meta={'item': item})
        if (self.get_next or self.get_next == '0') and meta.get('is_next') is not False:
            total_page = int(res.xpath('//totalrecord/text()').get() or 0)
            print('total', total_page, )
            for page_num in range(30, total_page + 1, 30):
                new_start = page_num + 1
                new_end = new_start + 29
                if new_end > total_page:
                    new_end = total_page
                params['startrecord'] = new_start
                params['endrecord'] = new_end
                meta.update({'item': prev_item, 'is_next': False})
                print(params)
                yield scrapy.Request(url=f"{response.url.split('?')[0]}?{urlencode(params)}", callback=self.parse_list, meta=meta)

    def parse_detail(self, response, **kwargs):
        item = Item() if response.meta.get('item') is None else response.meta.get('item')
        item['title'] = response.xpath("""string(//meta[@name='ArticleTitle']/@content)""").get()
        # item['publish_date'] = response.xpath(
        #     """string(//meta[@name='PubDate']/@content)""").get() or response.xpath(
        #     "//*[@class='fbrq']/text()").get()
        item['content'] = response.xpath(""".""").get()
        # item['source'] = self.source
        item['province'] = self.province
        item['city'] = self.city
        # item['county'] = self.county
        item['park'] = self.park
        yield item


if __name__ == "__main__":
    from scrapy import cmdline

    cmdline.execute("scrapy crawl jiangsu_nantong_czj2_policy -a get_next=0".split())
